Home / 228,343.92-315,115.21-126,376.41

Finding the Fourth Proportional to 228,343.92, 315,115.21 and 126,376.41

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Solution

The fourth proportional to 228,343.92, 315,115.21 and 126,376.41 is: 174,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,343.92 : 315,115.21 = 126,376.41 : x
  2. Step 2: Convert to fraction form
    228,343.92/315,115.21 = 126,376.41/x
  3. Step 3: Cross multiply
    228,343.92x = 315,115.21 × 126,376.41
  4. Step 4: Simplify right side
    228,343.92x = 39,823,127,832.46
  5. Step 5: Solve for x
    x = 39,823,127,832.46/228,343.92
  6. Step 6: Final answer
    x = 174,399.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.